Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Radiation Oncology of Northern Illinois LLC

Organization Radiation Oncology Physician · NPI 1598938755

Radiation Oncology of Northern Illinois LLC is a Radiation Oncology Physician in Ottawa, Illinois. Registered with an NPI since 2008.

In the registry since
2008
What do these letters mean?
LLC — Limited liability company
A form of business registration, not a clinical qualification.

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Practice location Address checks out

1200 Starfire Dr
Ottawa, IL 61350
Phone: (815) 431-5458
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Radiation Oncology Physician (primary) Taxonomy 2085R0001X

Record details

NPI number1598938755
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Robert Chaffin — Member · (815) 433-3100
NPI enumeratedApril 9, 2008
Last updated in NPPESApril 9, 2008
Mailing address1200 Starfire Dr, Ottawa, IL 61350

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